Fall arrest device and mobile dr equipment

Abstract

This application relates to the field of medical device technology, and more particularly to a fall protection device and a mobile DR device. The fall protection device, applied to a mobile DR device, includes a column assembly and a fall protection component. The column assembly includes a fixed column, a lifting column, and a flexible traction member. The lifting column is slidably mounted on the fixed column along a vertical direction. The top of the lifting column is used to mount a trolley and a camera assembly. The flexible traction member is connected to the fixed column and can adjust the height of the lifting column. The fixed column has a mating part on the side facing the lifting column. The fall protection component has a locking tongue, which is rotatably connected to the lifting column. One end of the locking tongue is elastically connected to the lifting column. When the flexible traction member fails, the locking tongue rotates under the action of elastic force and engages with the mating part. By incorporating the fall protection component, this application ensures that in the event of damage to the flexible traction member, the lifting column can be stably engaged with the fixed column, thereby effectively preventing damage to the camera assembly due to falls.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a fall protection device and a mobile DR device. Background Technology

[0002] Mobile medical DR equipment, also known as mobile X-ray machine, is widely used in hospitals at all levels due to its small size and flexibility. It is mainly used for bedside examinations of patients with limited mobility. It can quickly acquire high-definition images of all parts of the human body. It has fast imaging speed, high image quality, convenient operation, and easy storage and transmission. Moreover, it uses an energy storage type high voltage generator, which can be used without an external power supply, which greatly improves the efficiency of clinical diagnosis and reduces the risk of examination for patients.

[0003] Most mobile DR equipment uses a linkage system consisting of pulleys and flexible traction components for its lifting column. Due to the large daily usage of mobile DR equipment, the lifting column is frequently raised and lowered, which makes the flexible traction components prone to damage during operation. Once the flexible traction components loosen or break, the lifting column will not work properly, and in more serious cases, it may cause the camera components on the mobile X-ray machine to fall off. Utility Model Content

[0004] This application provides a fall protection device to solve the problem that damage to the flexible traction component during operation causes the lifting column to fall directly, thereby causing damage to the camera components on the mobile X-ray machine.

[0005] This application provides a fall protection device for use in mobile DR equipment, comprising: A column assembly includes a fixed column, a lifting column, and a flexible traction component. The lifting column is slidably disposed on the fixed column along the vertical direction. The top of the lifting column is used to install a trolley and a camera component. The flexible traction component is connected to the fixed column and can adjust the height of the lifting column. The fixed column has a mating part on the side facing the lifting column. The anti-fall component has a locking tongue, which is rotatably connected to the lifting column. One end of the locking tongue is elastically connected to the lifting column. When the flexible traction component fails, the locking tongue rotates under the action of elastic force and engages with the mating part.

[0006] Optionally, the fall arrestor assembly includes a connecting seat, a slider, and a release member. The connecting seat is connected to the lifting column, the release member is rotatably connected to the lifting column and rotates synchronously with the locking tongue, the slider is slidably connected to the connecting seat, one end of the slider is elastically connected to the lifting column, the other end of the slider is connected to the flexible traction member, and the end of the slider away from the connecting seat abuts against the release member to prevent the release member from rotating.

[0007] Optionally, the free end of the release member has an abutment portion, the slider has a pressing portion, the pressing portion has an abutment section, and the abutment section is used to abut the abutment portion.

[0008] Optionally, the pressing part is provided with a relief groove, so that when the flexible traction member fails, the abutting part can pass through the relief groove to release the abutting section from the abutting part.

[0009] Optionally, the fall arrestor includes a second elastic element, the two ends of which are connected to the clamping part and the lifting column, respectively.

[0010] Optionally, the latch has a locking section and a main body section, wherein the locking section and the main body section are set at an obtuse angle.

[0011] Optionally, the fall arrestor assembly has a first elastic element, the two ends of which are respectively connected to the lifting column and the main body section.

[0012] Optionally, the mating part has a plurality of first slots, and each of the first slots is spaced apart in the mating part along the vertical direction.

[0013] Optionally, the release element and the locking tongue are both provided with square holes, the anti-fall assembly has a square shaft, both ends of the square shaft are engaged with a square hole, and the lifting column is provided with a round hole, which is fitted onto the square shaft.

[0014] This application also proposes a mobile DR device, characterized in that it includes: Frame; As described above, the anti-fall device has a fixed column connected to the vehicle frame. The anti-fall device has two locking tongues and two flexible traction members. The lifting column is provided with multiple second slots spaced apart along the vertical direction. One locking tongue is used to engage with one of the second slots. A trolley is slidably connected to the lifting column, a locking tongue is rotatably connected to the trolley, and a flexible traction member is connected to the lifting column and can adjust the height of the trolley; when the flexible traction member fails, the locking tongue rotates under the action of elastic force and engages with the second slot. A camera assembly, which is connected to the trolley.

[0015] The technical solutions provided in this application have the following advantages compared with the prior art: The fall protection device disclosed in this application is specifically applied to mobile DR equipment. The fall protection device includes a column assembly and a fall protection component. The column assembly consists of a fixed column, a lifting column, and a flexible traction component. The lifting column is slidably mounted on the fixed column in a vertical direction, and its top end is used to mount the camera component. One end of the flexible traction component is connected to the fixed column, and the other end is used to adjust the height of the lifting column. The fixed column has a mating part on the side facing the lifting column, which can be configured to have multiple first slots distributed in a vertical direction. The fall protection component includes a locking tongue, which is rotatably connected to the lifting column and elastically connected to the lifting column via an elastic element such as a spring or elastic rubber. Under normal operating conditions, the locking tongue is in a retracted state, not affecting the normal lifting and lowering operation of the lifting column. When the flexible traction component fails due to loosening or breakage, the locking tongue automatically rotates under the action of elastic force, and one end engages with the mating part on the fixed column, thereby locking the lifting column and preventing it from continuing to descend. This application effectively solves the problem of potential loss of control of the lifting column when the flexible traction component of the mobile DR equipment is damaged by setting up anti-fall components. It significantly improves the safety and reliability of the equipment, prevents the camera components from falling and being damaged due to loss of control of the lifting column, and ensures the normal operation and service life of the equipment. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0019] Figure 1 This is a schematic diagram of the structure of the mobile DR device provided in the embodiments of this application; Figure 2 This is a schematic diagram of the structure of the fall protection device provided in the embodiments of this application; Figure 3This is a structural schematic diagram of the fixed column provided in an embodiment of this application; Figure 4 Schematic diagram of the structure of the lifting column and fall arrestor provided in the embodiments of this application. Figure 1 ; Figure 5 Schematic diagram of the structure of the lifting column and fall arrestor provided in the embodiments of this application. Figure 2 ; Figure 6 This is a schematic diagram of the locking tongue provided in an embodiment of this application; Figure 7 A schematic diagram of the structure of the release element provided in the embodiments of this application; Figure 8 This is a schematic diagram of the clamping part provided in an embodiment of this application.

[0020] Explanation of reference numerals in the attached figures: 1. Column assembly; 11. Fixed column; 12. Lifting column; 13. Flexible traction component; 111. Mating part; 11a. First slot; 12a. Second slot; 2. Anti-fall component; 21. Locking tongue; 22. Connecting seat; 23. Slider; 24. Release component; 241. Abutting part; 231. Pressing part; 2311. Abutting section; 23a. Relief groove; 25. Second elastic element; 211. Locking section; 212. Main body section; 26. First elastic element; 27. Square shaft; 3. Frame; 4. Pulley; 5. Camera components. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0023] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0024] To address the problem that damage to the flexible traction component 13 during operation could cause the lifting column 12 to fall directly, thereby damaging the camera assembly 5 on the mobile X-ray machine, this application provides a fall prevention device. By providing a locking tongue 21 and a mating part 111 that cooperate with each other on the lifting column and the fixed column, when the flexible traction component 13 fails due to loosening or breakage, the locking tongue 21 automatically rotates under the action of elasticity and engages with the mating part 111 on the fixed column 11, thereby locking the lifting column 12 and preventing it from continuing to descend.

[0025] Please see Figures 1 to 5 This application provides a fall protection device for a mobile DR device, including a column assembly 1 and a fall protection assembly 2. The column assembly 1 includes a fixed column 11, a lifting column 12, and a flexible traction member 13. The lifting column 12 is slidably mounted on the fixed column 11 along the vertical direction. The top of the lifting column 12 is used to install a trolley 4 and a camera assembly 5. The flexible traction member 13 is connected to the fixed column 11 and can adjust the height of the lifting column 12. The fixed column 11 has a mating part 111 on the side facing the lifting column 12. The flexible traction member 13 can be a flexible rope such as a steel wire rope, nylon rope, cotton rope, or polyester rope. The fall protection assembly 2 has a locking tongue 21, which is rotatably connected to the lifting column 12. One end of the locking tongue 21 is elastically connected to the lifting column 12. When the flexible traction member 13 fails, the locking tongue 21 rotates under the action of elastic force and engages with the mating part 111.

[0026] In this embodiment, the fixed column 11 and the lifting column 12 are typically made of high-strength aluminum alloy or steel to ensure the strength and stability of the equipment, while reducing weight for easy movement. The lifting column 12 is slidably connected to the fixed column 11 via a high-precision linear guide rail or lead screw structure to achieve smooth lifting and lowering, and is equipped with a limiting device to prevent exceeding the range of motion. Its top end is slidably connected to the trolley 4 via a guide rail or lead screw structure. The camera component 5 is connected to the trolley via a buckle or bolt structure to ensure the stability and reliability of the equipment during frequent use and movement. One end of the flexible traction component 13 is connected to the fixed column 11 by bolts or binding, and the other end is used to adjust the height of the lifting column 12. Specifically, the height of the lifting column 12 can be adjusted by a motor or other winding structure. The fixed column 11 has a mating part 111 on the side facing the lifting column 12, and the mating part 111 can be configured as multiple first slots 11a distributed in the vertical direction. The anti-fall component 2 includes a locking tongue 21. The middle part of the locking tongue 21 is rotatably connected to the lifting column 12 via a hinge or a hole-shaft connection. One end of the locking tongue 21 is elastically connected to the lifting column 12 via a spring or other elastic element, while the other end is used to engage with the mating part 111. Under normal operating conditions, the locking tongue 21 is in a retracted state and does not affect the normal lifting operation of the lifting column 12. When the flexible traction member 13 fails due to loosening or breakage, the locking tongue 21 automatically rotates under the action of elastic force, and one end engages with the mating part 111 on the fixed column 11, thereby locking the lifting column 12 and preventing it from continuing to descend. In a specific embodiment, the locking tongue 21 can be designed as an L-shape, and the mating part 111 consists of multiple grooves evenly distributed along the height direction of the fixed column 11. When the locking tongue 21 rotates, the L-shaped end of the locking tongue 21 can accurately engage in the groove, achieving a reliable locking function.

[0027] This embodiment of the application effectively solves the problem of potential loss of control of the lifting column 12 when the flexible traction component 13 of the mobile DR equipment is damaged by setting the anti-fall component 2. This significantly improves the safety and reliability of the equipment, prevents the camera component 5 from falling and being damaged due to loss of control of the lifting column 12, and ensures the normal operation and service life of the equipment. The anti-fall device has a simple structure, is easy to install and maintain, does not affect the normal operation and use of the equipment, and reduces maintenance costs. In practical applications, simply installing the anti-fall component 2 on the existing lifting column 12 of the mobile DR equipment is sufficient to upgrade and protect the equipment without requiring large-scale modifications to the main body. The elastic connection design of this device ensures that the locking tongue 21 does not interfere with the lifting action of the lifting column 12 under normal circumstances, and only functions when the flexible traction component 13 fails, ensuring the operating efficiency and ease of operation of the equipment.

[0028] Please see Figure 4 and Figure 5To further enhance the stability of the locking tongue 21 and prevent it from rotating accidentally and affecting normal use, the anti-fall component 2 includes a connecting seat 22, a slider 23, and a release member 24. The connecting seat 22 is connected to the lifting column 12, the release member 24 is rotatably connected to the lifting column 12 and rotates synchronously with the locking tongue 21, the slider 23 is slidably connected to the connecting seat 22, one end of the slider 23 is elastically connected to the lifting column 12, the other end of the slider 23 is connected to the flexible traction member 13, and the end of the slider 23 away from the connecting seat 22 abuts against the release member 24 to prevent the release member 24 from rotating.

[0029] In one embodiment, the anti-fall assembly 2, through its ingenious structural design, further enhances the stability of the locking tongue 21, preventing accidental rotation. Specifically, the connecting seat 22 is fixedly mounted on the lifting column 12 using bolts or clips, providing a stable support foundation for the entire anti-fall assembly 2. The release member 24 is rotatably connected to the lifting column 12 via a hinge or a hole-shaft connection, and is mechanically connected to the locking tongue 21, enabling synchronous rotation. The slider 23 is slidably connected to the connecting seat 22, with one end connected to the lifting column 12 via a spring or elastic rubber, and the other end connected to the flexible traction member 13. When the flexible traction member 13 is in normal working condition, the slider 23 is held in a certain position under the tension of the elastic element and the flexible traction member 13. At this time, the end away from the connecting seat 22 abuts against the release member 24, thereby restricting the rotation of the release member 24 and thus preventing the rotation of the locking tongue 21. Once the flexible traction member 13 loosens or breaks, the elastic element contracts, and the slider 23 moves between the connecting seat 22 under the action of elastic force and gravity, thereby releasing the restriction between it and the release member 24. The locking tongue 21 rotates under the action of the elastic force of another elastic element and locks onto the mating part 111 of the fixed column 11.

[0030] This embodiment effectively prevents the locking tongue 21 from rotating erroneously during normal operation by using the abutment design between the slider 23 and the release member 24, thus improving the stability and reliability of the equipment and avoiding equipment failure or operational errors caused by the malfunction of the locking tongue 21. This structural design allows for a rapid response when the flexible traction member 13 fails, releasing the locking tongue 21 and engaging it with the mating part 111 of the fixed column 11, thereby ensuring the stability of the lifting column 12 and protecting the camera assembly 5 from damage. The anti-fall component 2 has a simple structure and is easy to integrate into existing mobile DR equipment without requiring large-scale modifications, reducing the cost and difficulty of equipment upgrades. In practical applications, simply installing the connecting seat 22 on the lifting column 12 and assembling the slider 23, release member 24, and other components according to design requirements is sufficient to achieve anti-fall protection for the equipment, improving its safety and service life.

[0031] Please see Figure 4 , Figure 7as well as Figure 8 In order to enable the release member 24 to be better abutted and to prevent unnecessary rotation of the release member 24 and the locking tongue 21, the free end of the release member 24 has an abutting part 241, the slider 23 has a pressing part 231, the pressing part 231 has an abutting section 2311, and the abutting section 2311 is used to abut the abutting part 241.

[0032] In one embodiment of this application, the pressing part 231 has a dedicated abutment section 2311 for close contact with the abutment section 241 of the release member 24. Specifically, the abutment section 241 of the release member 24 can be a boss or a plane, and the abutment section 2311 of the slider 23 is a matching boss or plane. Under the combined action of the elastic element and the flexible traction member 13, the slider 23 is stably positioned at the free end of the release member 24, and the abutment section 2311 is in close contact with the abutment section 241, thereby preventing the release member 24 from rotating. Once the flexible traction member 13 fails, the spring returns to its original position from the stretched state, causing the slider 23 to move. At this time, the abutment section 2311 separates from the abutment section 241, allowing the release member 24 and the locking tongue 21 to rotate. The free end of the locking tongue 21 engages with the mating part 111 of the fixed column 11, achieving the anti-fall function.

[0033] This embodiment of the application significantly improves the reliability and stability of the anti-fall assembly 2 by designing an abutment portion 241 and a clamping portion 231 on the release member 24 and the slider 23, respectively. This design ensures that under normal operating conditions, the release member 24 and the locking tongue 21 will not rotate unnecessarily due to external interference or misoperation, thereby avoiding equipment malfunction and potential safety risks. Furthermore, through precise mechanical matching, the design of the abutment section 2311 and the abutment portion 241 not only improves the contact stability between components but also reduces component wear and extends the service life of the equipment. In practical applications, this design can effectively prevent the locking tongue 21 from malfunctioning due to equipment vibration or improper operation, ensuring the stability and safety of the equipment during frequent use.

[0034] Please see Figure 4 , Figure 7 as well as Figure 8 In order to ensure that the pressing part 231 can release the release member 24 normally so that the release member 24 can rotate normally, the pressing part 231 is provided with a relief groove 23a. When the flexible traction member 13 fails, the abutment part 241 can pass through the relief groove 23a to release the abutment section 2311 from the abutment part 241.

[0035] In this embodiment, under normal operating conditions, the abutting section 2311 of the slider 23 is in close contact with the abutting portion 241 of the release member 24, preventing the release member 24 from rotating. When the flexible traction member 13 fails, the slider 23 moves under the action of the elastic element, and the abutting section 2311 separates from the abutting portion 241. At this time, the abutting portion 241 can pass through the relief groove 23a, thereby releasing the restriction on the release member 24. Specifically, the relief groove 23a can be designed as an elongated opening penetrating the pressing part 231, with a size sufficient to allow the abutting portion 241 to pass smoothly. For example, the pressing part 231 can be a rectangular protrusion, and the relief groove 23a is opened along the sliding direction of the slider 23. When the slider 23 moves to a certain position, the abutting portion 241 can pass through the relief groove 23a without obstruction, ensuring that the release member 24 can rotate freely, thereby ensuring that the locking tongue 21 can engage with the mating part 111 of the fixed column 11, realizing the anti-fall function.

[0036] The recessed groove 23a design of the clamping part 231 in this embodiment significantly improves the reliability of the anti-fall component 2 in emergency situations. The recessed groove 23a ensures that the release part 24 can rotate quickly and unimpeded when the flexible traction member 13 fails, thereby ensuring that the locking tongue 21 engages with the mating part 111 of the fixed column 11, effectively preventing the lifting column 12 from falling due to loss of control. This design not only improves the safety of the equipment but also ensures that the equipment can respond quickly in emergency situations, protecting the camera component 5 from damage.

[0037] Please see Figure 4 and Figure 5 In order to ensure that the clamping part 231 can slide between the connecting seat 22 at the first moment of failure of the flexible traction member 13, thereby avoiding the release member 24, the anti-fall assembly 2 includes a second elastic member 25, the two ends of which are connected to the clamping part 231 and the lifting column 12 respectively.

[0038] In one embodiment, the second elastic element 25 can be a tension spring, with one end fixed to the bottom of the pressing part 231 and the other end fixed to the lifting column 12. Under normal operating conditions, the force and tension of the flexible traction element 13 maintain close contact between the pressing part 231 and the abutment part 241 of the release element 24. When the flexible traction element 13 fails, its force disappears, and the second elastic element 25 quickly resets from its stretched state, pulling the pressing part 231 along the slide rail of the connecting seat 22 away from the release element 24. This allows the pressing part 231 to quickly disengage from the release element 24, ensuring that the release element 24 can rotate in time, causing the locking tongue 21 to engage with the mating part 111 of the fixed column 11, thus achieving the fall prevention function. The second elastic element 25 introduced in this embodiment significantly improves the response speed and reliability of the fall prevention component 2 when the flexible traction element 13 fails. With the rapid reset of the second elastic element 25, the clamping part 231 can quickly slide to avoid the release element 24 the moment the flexible traction element 13 fails, ensuring that the release element 24 can rotate in time and drive the locking tongue 21 to engage with the mating part 111 of the fixed column 11, effectively preventing the lifting column 12 from falling due to loss of control. This design not only improves the safety of the equipment, but also ensures that the equipment can respond quickly in an emergency, protecting the camera assembly 5 from damage.

[0039] Please see Figures 4 to 6 Since one end of the locking tongue 21 needs to be fully engaged in the mating part 111, and the weight of the entire camera assembly 5 and the lifting column 12 and other structures is relatively large, the impact force on the locking tongue 21 is relatively large. The locking tongue 21 has a locking section 211 and a main body section 212, and the locking section 211 and the main body section 212 are set at an obtuse angle.

[0040] In this embodiment, the locking segment 211 is the part of the locking tongue 21 that directly contacts the mating part 111. Its shape and size match the groove or first slot 11a of the mating part 111 to ensure rapid and secure engagement when the flexible traction member 13 fails. The main body segment 212 is connected to the lifting column 12 via an elastic element (such as a spring) to provide necessary elastic support. The locking tongue 21 can be designed as a bent structure, with the longer segment being the main body segment 212 and the shorter segment being the locking segment 211. The main body segment 212 is connected to the lifting column 12 via a spring. The spring force ensures that the locking segment 211 remains in the proper position under normal conditions, and can quickly rotate and engage with the mating part 111 when the flexible traction member 13 fails.

[0041] It should be noted that the main body section 212 has a relatively large overall thickness, which can withstand the impact force generated by the falling of the camera component 5 and the lifting column 12. However, the locking section 211 needs to be engaged with the mating part 111, so its overall thickness cannot be too large. Therefore, the locking section 211 is in a contracted shape, and its cross-sectional area gradually decreases along the direction from the main body section 212 to the mating part 111.

[0042] Please see Figure 4 and Figure 5 In order to ensure that the locking section 211 of the locking tongue 21 can respond quickly and engage with the mating part 111 when the flexible traction member 13 fails, the anti-fall component 2 has a first elastic member 26, the two ends of which are connected to the lifting column 12 and the main body section 212 respectively.

[0043] In one embodiment of this application, the first elastic element 26 can be a tension spring, with one end fixed to the lifting column 12 and the other end fixed to the main body section 212 of the locking tongue 21. Under normal operating conditions, the tension of the flexible traction element 13 keeps the locking section 211 of the locking tongue 21 in a non-engaged state. When the flexible traction element 13 fails, its tension disappears, and the first elastic element 26 quickly contracts and resets, pulling the main body section 212 of the locking tongue 21 to rotate, causing the locking section 211 to quickly engage with the mating part 111 of the fixed column 11. For example, the main body section 212 of the locking tongue 21 can be rotatably connected to the lifting column 12 via a pivot, with the first elastic element 26 (tension spring) installed near the pivot to ensure that the locking tongue 21 can be quickly pulled to rotate when the flexible traction element 13 fails. This design ensures a rapid response of the locking tongue 21 in emergency situations, improving the safety and reliability of the equipment.

[0044] Please see Figure 3 The mating part 111 is provided with a plurality of first slots 11a, and each first slot 11a is spaced apart in the mating part 111 along the vertical direction.

[0045] In this embodiment, to ensure that the locking section 211 of the latch 21 can stably engage with the fixed column 11 at different height positions, the mating part 111 is provided with multiple first slots 11a, which are spaced apart along the vertical direction. Specifically, the fixed column 11 has a row of first slots 11a on the side facing the lifting column 12. These first slots 11a can be rectangular, semi-circular, or other grooves suitable for the shape of the locking section 211 of the latch 21. The spacing of the first slots 11a is designed according to the actual usage height requirements of the lifting column 12 to meet the requirements of different inspection positions. Under the action of the first elastic member 26, the locking section 211 of the latch 21 can quickly rotate and engage with any one of these first slots 11a, thereby stably locking the lifting column 12 at different height positions. This design not only improves the flexibility and applicability of the equipment, but also ensures that the latch 21 can quickly and accurately engage with the fixed column 11 in an emergency.

[0046] The design of multiple first slots 11a in the mating part 111 of this embodiment significantly improves the flexibility and reliability of the fall protection device. By providing multiple first slots 11a spaced along the vertical direction on the fixed column 11, the locking section 211 of the locking tongue 21 can stably engage with the fixed column 11 at different height positions, thereby ensuring that the lifting column 12 can be effectively locked in various inspection positions. This design not only improves the applicability of the device, but also ensures that the locking tongue 21 can quickly and accurately engage with the fixed column 11 in an emergency, effectively preventing the lifting column 12 from falling due to loss of control and protecting the camera assembly 5 from damage. In addition, the design of multiple first slots 11a is simple, easy to manufacture and maintain, does not increase the complexity or cost of the device, and improves the overall performance of the device and the user experience.

[0047] Please see Figures 4 to 7 Both the release element 24 and the locking tongue 21 have square holes. The anti-fall component 2 has a square shaft 27, and both ends of the square shaft 27 are fitted with a square hole. The lifting column 12 has a round hole, which is fitted onto the square shaft 27.

[0048] In one embodiment, to achieve synchronous rotation of the release member 24 and the locking tongue 21, and a stable rotational connection with the lifting column 12, both the release member 24 and the locking tongue 21 are provided with square holes. The fall arrestor assembly 2 also includes a square shaft 27, the two ends of which respectively engage with the square holes of the release member 24 and the locking tongue 21, thereby ensuring that the release member 24 and the locking tongue 21 can rotate synchronously. In addition, a circular hole is provided on the lifting column 12, which is fitted onto the square shaft 27. Through this design, the square shaft 27 can rotate freely within the circular hole while maintaining its connection with the lifting column 12. Specifically, the square shaft 27 can be designed as a shaft with two square ends, the two ends of which are inserted into the square holes of the release member 24 and the locking tongue 21 respectively, while the middle part is circular, engaging with the circular hole of the lifting column 12. This structural design not only ensures the synchronous action of the release member 24 and the locking tongue 21, but also improves the stability and reliability of the entire fall arrestor assembly 2.

[0049] The design of the square holes of the release element 24 and the locking tongue 21 in this embodiment, which are matched with the square shaft 27, significantly improves the synchronization and stability of the fall arrestor 2. By matching the square shaft 27 with the square holes of the release element 24 and the locking tongue 21, it is ensured that the release element 24 and the locking tongue 21 can rotate synchronously. This allows the locking tongue 21 to quickly and accurately engage with the mating part 111 of the fixed column 11 when the flexible traction element 13 fails. Simultaneously, the round hole on the lifting column 12 is fitted onto the square shaft 27, ensuring that the square shaft 27 can rotate freely within the round hole, further improving the flexibility and reliability of the fall arrestor 2. This design not only improves the response speed of the equipment in emergency situations but also ensures the safety and stability of the equipment.

[0050] This application also proposes a mobile DR device; please refer to [link / reference needed]. Figure 1 and Figure 2 The system includes a frame 3, a fall arrestor, a trolley 4, and a camera assembly 5. The fixed column 11 is connected to the frame 3. The fall arrestor has two locking tongues 21 and two flexible traction members. The lifting column 12 has multiple second slots 12a spaced apart along the vertical direction. One locking tongue 21 is used to engage with one of the second slots 12a. The trolley 4 is slidably connected to the lifting column 12. One locking tongue 21 is rotatably connected to the trolley 4. One flexible traction member is connected to the lifting column 12 and can adjust the height of the trolley 4. When the flexible traction member fails, the locking tongue 21 rotates under the action of elasticity and engages with the second slot 12a. The camera assembly 5 is connected to the trolley 4.

[0051] In this embodiment, the frame 3 is made of high-strength aluminum alloy or steel, and is equipped with multiple casters at the bottom for easy movement within the hospital. The fixed column 11 is securely connected to the frame 3 to ensure the stability of the entire device. The anti-fall device includes two locking tongues 21 and two flexible traction components, where the flexible traction components can be steel wire ropes 13 or other high-strength flexible materials. The lifting column 12 has multiple second slots 12a spaced apart vertically, with one locking tongue 21 corresponding to one second slot 12a, used to provide emergency locking for the trolley 4 in case of failure of the flexible traction component. The trolley 4 is slidably connected to the lifting column 12, one locking tongue 21 is rotatably connected to the trolley 4, and one flexible traction component is connected to the lifting column 12 and can adjust the height of the trolley 4. When the flexible traction component used to adjust the trolley 4 fails, the locking tongue 21 rotates under the action of elasticity and engages with the second slot 12a, ensuring the stability of the trolley 4 and the camera assembly 5. The camera assembly 5 is connected to the trolley 4 via a dedicated mounting bracket to ensure stability and safety under various operating conditions.

[0052] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0053] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0054] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A fall protection device, applied to a mobile DR (Digital Radiography) device, characterized in that, include: The column assembly (1) includes a fixed column (11), a lifting column (12), and a flexible traction member (13). The lifting column (12) is slidably disposed on the fixed column (11) along the vertical direction. The top of the lifting column (12) is used to install a trolley (4) and a camera assembly (5). The flexible traction member (13) is connected to the fixed column (11) and can adjust the height of the lifting column (12). The fixed column (11) has a mating part (111) on the side facing the lifting column (12). The anti-fall component (2) has a locking tongue (21), which is rotatably connected to the lifting column (12). One end of the locking tongue (21) is elastically connected to the lifting column (12). When the flexible traction member (13) fails, the locking tongue (21) rotates under the action of elastic force and engages with the mating part (111).

2. The fall arrestor according to claim 1, characterized in that, The fall arrestor assembly (2) includes a connecting seat (22), a slider (23), and a release member (24). The connecting seat (22) is connected to the lifting column (12). The release member (24) is rotatably connected to the lifting column (12) and rotates synchronously with the locking tongue (21). The slider (23) is slidably connected to the connecting seat (22). One end of the slider (23) is elastically connected to the lifting column (12). The other end of the slider (23) is connected to the flexible traction member (13). The end of the slider (23) away from the connecting seat (22) abuts against the release member (24) to prevent the release member (24) from rotating.

3. The fall arrestor according to claim 2, characterized in that, The free end of the release member (24) has an abutment portion (241), the slider (23) has a pressing portion (231), the pressing portion (231) has an abutment section (2311), and the abutment section (2311) is used to abut the abutment portion (241).

4. The fall arrestor according to claim 3, characterized in that, The pressing part (231) is provided with a relief groove (23a). When the flexible traction member (13) fails, the abutting part (241) can pass through the relief groove (23a) to release the abutting section (2311) from the abutting part (241).

5. The fall arrestor according to claim 3, characterized in that, The fall arrestor assembly (2) includes a second elastic element (25), the two ends of which are connected to the pressing part (231) and the lifting column (12) respectively.

6. The fall arrestor according to any one of claims 1-5, characterized in that, The locking tongue (21) has a locking section (211) and a main body section (212), wherein the locking section (211) and the main body section (212) are set at an obtuse angle.

7. The fall arrestor according to claim 6, characterized in that, The fall arrestor assembly (2) has a first elastic element (26), the two ends of which are connected to the lifting column (12) and the main body section (212), respectively.

8. The fall arrestor according to any one of claims 1-5, characterized in that, The mating part (111) has a plurality of first slots (11a), and each first slot (11a) is spaced apart in the mating part (111) along the vertical direction.

9. The fall arrestor according to any one of claims 2-5, characterized in that, The release member (24) and the locking tongue (21) are both provided with square holes. The anti-fall assembly (2) has a square shaft (27). Both ends of the square shaft (27) are engaged with the square holes. The lifting column (12) is provided with a round hole, which is fitted onto the square shaft (27).

10. A mobile DR device, characterized in that, include: Frame (3); According to any one of claims 1-9, the fixed column (11) is connected to the frame (3), the fall protection device has two locking tongues (21) and two flexible traction members (13), the lifting column (12) is provided with a plurality of second slots (12a) spaced apart along the vertical direction, and one locking tongue (21) is used to engage with one of the second slots (12a); A trolley (4) is slidably connected to the lifting column (12), a locking tongue (21) is rotatably connected to the trolley (4), and a flexible traction member (13) is connected to the lifting column (12) and can adjust the height of the trolley (4); when the flexible traction member (13) fails, the locking tongue (21) rotates under the action of elastic force and engages with the second slot (12a); A camera assembly (5) is connected to the trolley (4).

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